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# '''
# parse=etree.HTML(html)
# weibo_tex=parse.xpath('//div[@class="weibo-text"]')
# print(weibo_tex)
import re
#text='环境污染的远期影响，是对人类健康的严重威胁，不只是致癌，而且可能通过胎盘危及胎儿，以及引起遗传变异，染色体畸变和遗传基因退化。这不只是第二代、第三代的问题，严重时可能使人类的质量退化，贻</span><span>害子孙后代，造成无可挽回的损失。</span></br><span>　　自然资源的破坏，有的要几十年、上百年才能恢复，有的则难以逆转。如据近</span><span>XX</span><span>年来记录的统计，约有</span><span>110</span><span>多种兽类、</span><span>130</span><span>多种鸟类业已灭绝，其中有</span><span>1/3</span><span>是十九世纪以前灭绝的，</span><span>1/3</span><span>是十九世纪绝种的，</span><span>1/3</span><span>是近</span><span>50</span><span>年来被消灭掉的。目前全世界估计有</span><span>25000</span><span>种植物，</span><span>1000</span><span>多种脊椎动物，正处于灭绝的边缘。尽管人类正在采取许多局部性保护措施，但一些珍贵动植物还在继续走向灭绝，因为人类活动形成的全球性有害影响远远胜过局部保护性措施所产生的效果。</span></br><span>　　当前，我国环境污染和自然资源破坏的情</span><span>况也是相当严重的，非认真解决不可。例如，有的城市环境污染严重，由于大气污染使冬季人的死亡率显然增加</span><span>(</span><span>呼吸系统疾病</span><span>)</span><span>。据</span><span>57</span><span>个城市统计飘尘都超标，超标三倍以上的有</span><span>28</span><span>个</span><span>;</span><span>二氧化硫的年排放量已达</span><span>1500</span><span>万吨。从水体来看，地下水硬度增高，水位下降已成为大城市具有普遍性的现象。加之有些地方地表水污染严重，水资源紧张已成为影响生产发展的严重问题。此外，噪声污染和自然资源的破坏也很严重。如湖北江汉湖群，素有千湖之称，现在湖群已由原来的</span><span>1000</span><span>多个减少到</span><span>300</span><span>多个。长江上游因植被受到破坏，引起严重的水土流失，每年冲入长江</span><span>的泥沙达</span><span>6</span><span>亿多吨。</span></br><span>　　实践还证明，生产建设和生态平衡之间的关系是否协调是经济建设中的战略性问题。国民经济各部门的比例关系失调，花几年功夫可以调整过来。而生态平衡遭到破坏，没有十几年，几十年，甚至上百年的时间是难以调整过来的。这样来分析问题，才能更深刻地认识我国环境保护工作的迫切性。</span></br><span>　　因此，一切环境保护工作者、生产部门的领导者和广大管理干部、工程技术人员，都要既有生产观点，又要深刻认识保护环境的重要性，在发展生产的过程中搞好环境保护，保护环境也要促进生产发展，作到环境效果与经济效果的统一，在实现社会主义</span><span>现代化建设的过程中，为人民创造一个美好的环境。'
text='保护环境的确是一个值得大家关注的问题，现在人们的生活在不断提高，而保护环境的意识却越来越淡薄。看见有许多人在湖里乱扔垃圾，使原本美丽的湖变的越来越遭世人所讨厌。</span><span>   </span></br><span>        </span><span>我们应该团结起来，共同保护我们的地球妈妈。人类只有一个地球，它是人类赖以生存的自然资源，爱护地球，就是爱护自己的家园。大片森林被砍伐，美丽的草原成荒漠，清澈的河水成浊流。树林少了，青山秃了，草原荒了，清水黑了，使人们生存的环境变坏，呼吸的空气变差，生活的环境被许多有害的东西所</span><span>“</span><span>侵占</span><span>”</span><span>，病毒就趁机钻进人们的体内，我们人类就会患上一些可怕的疾病。</span><span>                                                                                                       </span><span>人类在破坏环境的同时，也在不知不觉地伤害自己。当你砍伐树木时，你有没有想过你在伤害自己吗？据我所知，氧气全部来自植物。每一棵大树一天可以吸收</span><span>0.1</span><span>千克的二氧化碳，产生</span><span>0.75</span><span>千克的氧气。如果没有了氧气，人类无法生存，只有灭绝。</span><span> </span></br><span>      </span><span>保护环境，人人有责！但最关键的还是要唤起人们的环保意识。现在我们的政府，大多数的公民都有了一定的环保意识，也能注意保护环境，但破坏环境的行为还在某些人身上重演。希望大家都能从我做起，从小事做起，养成良好的卫生习惯，不随地乱扔垃圾，见</span><span>到垃圾能弯</span><span>下腰捡一捡，那么，我们的环境就会更美丽'
a=re.sub('</span>|<br>|<span>','',text)
print(a.strip())
